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Finding the Fourth Proportional to 674,460.11, 930,727.21 and 368,547

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Solution

The fourth proportional to 674,460.11, 930,727.21 and 368,547 is: 508,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,460.11 : 930,727.21 = 368,547 : x
  2. Step 2: Convert to fraction form
    674,460.11/930,727.21 = 368,547/x
  3. Step 3: Cross multiply
    674,460.11x = 930,727.21 × 368,547
  4. Step 4: Simplify right side
    674,460.11x = 343,016,721,063.87
  5. Step 5: Solve for x
    x = 343,016,721,063.87/674,460.11
  6. Step 6: Final answer
    x = 508,579.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.